EP2155467B1 - Appareil de production de tubes ronds ou ovales en matière plastique - Google Patents
Appareil de production de tubes ronds ou ovales en matière plastique Download PDFInfo
- Publication number
- EP2155467B1 EP2155467B1 EP08758141.9A EP08758141A EP2155467B1 EP 2155467 B1 EP2155467 B1 EP 2155467B1 EP 08758141 A EP08758141 A EP 08758141A EP 2155467 B1 EP2155467 B1 EP 2155467B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- funnel
- circular ring
- diameter
- inner circle
- ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000004033 plastic Substances 0.000 title claims description 28
- 238000004519 manufacturing process Methods 0.000 title description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims 1
- 238000001816 cooling Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000003000 extruded plastic Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
- B29C48/907—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article using adjustable calibrators, e.g. the dimensions of the calibrator being changeable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
- B29C48/901—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies
- B29C48/903—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies externally
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
- B29C48/908—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article characterised by calibrator surface, e.g. structure or holes for lubrication, cooling or venting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
- B29C48/9115—Cooling of hollow articles
- B29C48/912—Cooling of hollow articles of tubular films
- B29C48/913—Cooling of hollow articles of tubular films externally
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/919—Thermal treatment of the stream of extruded material, e.g. cooling using a bath, e.g. extruding into an open bath to coagulate or cool the material
Definitions
- the invention relates to a device for producing round or oval plastic pipes according to the preamble of claim 1 and according to EP 1 157 805 A1 ,
- Plastic pipes are sprayed in an extruder.
- the plastic pipe leaving the extruder is still soft, so it must be fed to a cooling device.
- a cooling device Here it is known to guide the still soft plastic tube through an outer jacket tube with a jacket cooling, so that the plastic tube is solidified after leaving this jacket tube and maintains its shape.
- the disadvantage of these devices is that at a different plastic pipe diameter, the entire calibration must be replaced, which is associated with considerable technical effort. Furthermore, the cooling capacity through the water jacket is relatively low.
- the object of the invention is to provide a device for producing round or oval plastic pipes with an improved calibration device.
- the basic idea of the device according to the invention for producing round or oval plastic pipes is to use a conical funnel as the calibration device.
- a conical funnel as the calibration device.
- the plastic pipe to be calibrated is fed coaxially from behind, ie from the side with the large diameter, to the hopper so that it then reaches the area of the small diameter of the hopper.
- the peripheral edge of this small diameter is applied to the lateral surface of the plastic tube.
- the openings of the funnel can be round, but also in terms of their cross-sectional shape be oval.
- the use of a cone-shaped funnel has the advantage that an optimal water supply for cooling the still soft plastic tube is possible.
- a preferred embodiment proposes claim 2 with regard to the manufacture and design of the funnel.
- the basic idea is that the funnel is formed by a circular ring which has a sector (sector). For example, this annulus can be semicircular.
- the basic idea is to roll this annulus into a cone-shaped funnel. Due to the inherent stability of the corresponding flexible material of the annulus, a round conical shape of the funnel is thereby created in a simple manner. By appropriate supports, but it is also possible to create an oval cone shape.
- the development according to claim 3 has the advantage that the funnel in the region of the small diameter, ie in the exit region of the plastic tube from the funnel describes an exactly circular line by the concave rounded inner circle line rests against the corresponding mating edge of the annulus.
- Another preferred embodiment proposes claim 4.
- the basic idea is that due to the pointed flow of the inner circle of the annulus no diameter jump occurs, but rather that the nominal diameter in the outlet area of the plastic tube is exactly maintained. As a result, no grooves are formed on the plastic pipe.
- a further preferred embodiment proposes according to claim 5, that the diameter of the funnel is changeable. This has the advantage that for the production of a plastic tube with a different diameter, not the entire calibration must be replaced, but that only the diameter of the funnel is changed so as to be able to quickly make an adjustment to different diameters.
- a first variant for changing the degree of rolling of the circular ring proposes claim 7.
- the basic idea for adjusting the funnel is that the shell of the funnel of a coaxial ring is surrounded, said ring rests against the lateral surface.
- the opening of the cone becomes larger or smaller.
- the circular ring preferably has at its one radial edge a protruding web or the like., Which acts as a driver. In this driver, the ring engages positively.
- the axial displacement of the ring with respect to the fixed funnel can be done for example by means of a screw thread.
- a second variant for changing the degree of rolling of the circular ring proposes claim 8.
- the basic idea is not to let the adjusting device act on the lateral surface of the funnel, but to allow the adjusting device to act in the region of the peripheral edge of the larger diameter of the funnel.
- the adjusting device is engaged with this circular peripheral edge. By a movement of the adjusting radially inwardly or outwardly this peripheral edge is taken, so that thereby the diameter of the funnel is increased or decreased accordingly. This then proportionally changes the diameter of the small diameter of the funnel, with the opening angle of the cone always remaining the same.
- a further development proposes according to claim 9 that several funnels are arranged coaxially one behind the other. This will be a gradual Calibration generated.
- the advantage is that even by the arrangement of several funnels one behind the other, a water supply is readily possible.
- the development according to claim 10 has the advantage that a higher cooling capacity is achieved by the water bath, so that thus a faster forward transport of the plastic pipe is possible.
- Fig. 1 shows a circular ring 1 with a sector (sector) in the form of a semicircle. It shows Fig. 1 the inside of this annulus. The outside of the annulus 1 is provided with a lubricant coating.
- the inner circle line 2 of the circular ring 1 has a convex rounding (hatched area) in the area where this inner circle line 2 merges into the radial area of the circular area.
- the annulus 1 is rolled up into a cone-shaped funnel 4 having a large opening on one side and a smaller opening on the other side.
- the convexly rounded inner circle 2 of the circular ring 1 lies on another area of this inner circle 2 on.
- the hopper 4 is associated with an adjusting device for changing the diameter of the hopper 4.
- This adjusting device has a ring 5. This takes with a corresponding groove on the driver 3 of the annulus 1.
- the degree of AufrollSches the annulus 1 is changed and thus the diameter of the (smaller) opening of the funnel 4 changed. It is in the 8 to 11 the condition with a larger diameter and the appearance of the Fig. 12 to 15 the state shown with a smaller diameter.
- FIGS. 16 and 17 show that with the funnel 4 not only round openings, but also oval openings can be created.
- the operation in cooperation with the ring 5 is correspondingly.
- FIGS. 18 and 19 show a slightly different type of adjustment 6.
- the basic principle is that the round peripheral edge of the funnel 4 is guided in a radial guide.
- this adjusting 6 moves upward, so reduces the diameter.
- the radial guide of the adjusting device 6 is moved downward, the diameter increases.
- the diameter can be varied.
- Fig. 23 the diameter has been reduced.
- FIGS. 24 and 25 show yet a modified embodiment in that the funnels 4 is followed by a water bath 8, through which the plastic pipe 7 is led to cool down.
- the funnel shown in the drawing to the left of the water bath 8 provides an airtight seal of the system when the system is in negative pressure.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Claims (8)
- Appareil pour la production de tubes en plastique rondes ou ovales (7), comprenant un dispositif de calibration formé d'un entonnoir conique (4) à diamètre modifiable,
le tube en plastique pouvant être passé de manière coaxiale à travers l'ouverture de l'entonnoir (4) de diamètre inférieur, ledit dispositif étant en contact avec la surface extérieure du tube en plastique (7),
ledit dispositif caractérisé en ce que
l'entonnoir (4) est formé d'un anneau circulaire (1) présentant un arc de cercle,
l'anneau circulaire (1) étant roulé en entonnoir conique (4) et le degré de rotation de l'anneau circulaire (1) en entonnoir étant modifiable. - Dispositif selon la revendication précédente, caractérisé en ce que la partie d'une ligne circulaire intérieure (2) de l'anneau circulaire (1) qui, l'anneau circulaire (1) étant roulé en entonnoir (4), touche à une autre section de la dite ligne circulaire intérieure (2) montre un contour arrondi de manière convexe.
- Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que la section de la ligne circulaire intérieure (2) de l'anneau circulaire (1) qui, l'anneau circulaire (1) étant roulé en entonnoir (4), touche à une autre section de la dite ligne circulaire intérieure (2), vue en section radiale est pointue vers la ligne circulaire intérieure (2).
- Dispositif selon l'une quelconque des revendications 1-3, caractérisé en ce que la section de l'anneau circulaire (1) chevauchant la surface extérieure de l'entonnoir (4) présente un entraîneur (3) et qu'un anneau (5) est prévu, concentrique avec l'entonnoir (4), entourant la surface extérieure de l'entonnoir (4) de manière circulaire et en prise avec l'entraîneur, ledit anneau (5) étant axialement déplaçable et librement mobile en rotation.
- Dispositif selon l'une quelconque des revendications 1-3, caractérisé en ce qu'un système de déplacement qui peut être déplacé verticalement à l'axe de l'entonnoir (4) s'engage au bord périphérique de plus grand diamètre de l'entonnoir (4).
- Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que plusieurs entonnoirs (4) sont disposés les uns à la suite des autres de manière coaxiale.
- Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que l'entonnoir se trouve dans un bain d'eau (8) ou qu'un bain d'eau (8) est situé en aval.
- Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un capteur est associé au tube en plastique (7) sortant de l'entonnoir (4), ledit capteur mesurant le diamètre du tube en plastique (7) calibré.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007026309A DE102007026309B3 (de) | 2007-06-06 | 2007-06-06 | Vorrichtung zum Herstellen von runden oder ovalen Kunststoffrohren |
PCT/DE2008/000901 WO2008148372A1 (fr) | 2007-06-06 | 2008-05-29 | Appareil de production de tubes ronds ou ovales en matière plastique |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2155467A1 EP2155467A1 (fr) | 2010-02-24 |
EP2155467B1 true EP2155467B1 (fr) | 2017-04-26 |
Family
ID=39811952
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08758141.9A Active EP2155467B1 (fr) | 2007-06-06 | 2008-05-29 | Appareil de production de tubes ronds ou ovales en matière plastique |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2155467B1 (fr) |
DE (1) | DE102007026309B3 (fr) |
WO (1) | WO2008148372A1 (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009000154B4 (de) | 2009-01-12 | 2014-01-23 | Battenfeld-Cincinnati Germany Gmbh | Vorrichtung und Verfahren zum Führen und/oder Formen eines Kunststoffstranges |
DE102009000161A1 (de) * | 2009-01-13 | 2010-07-15 | Battenfeld Extrusionstechnik Gmbh | Verfahren zum Abdichten eines Vakuum- und Kalibriertankes |
DE102011001882A1 (de) | 2010-04-09 | 2011-10-13 | Troester Gmbh & Co. Kg | Vorrichtung mit einer einstellbaren Durchlassöffnung |
DE102010042862B4 (de) * | 2010-10-25 | 2017-05-11 | Battenfeld-Cincinnati Germany Gmbh | Vorrichtung zum Führen und Formen eines extrudierten Kunststoffstranges |
DE102010043791A1 (de) | 2010-11-11 | 2012-05-16 | Battenfeld-Cincinnati Germany Gmbh | Vorrichtung und Verfahren zum Führen und Formen eines extrudierten Kunststoffstranges |
DE102015106398A1 (de) | 2015-04-26 | 2016-10-27 | Battenfeld-Cincinnati Germany Gmbh | Verfahren und Vorrichtung zum Kühlen von extrudierten Profilen |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2605582A (en) * | 1946-07-24 | 1952-08-05 | Raney R Allen | Inlet tube for use in bait traps |
US3904334A (en) * | 1970-06-08 | 1975-09-09 | Polymer Processing Res Inst | Apparatus for shaping tubular film |
DE2244294A1 (de) * | 1972-09-09 | 1974-03-21 | Continental Gummi Werke Ag | Verfahren und einrichtung zum kalibrieren des aussenmantels und zum kuehlen von stranggepressten hohlprofilstraengen aus thermoplastischen kunststoffen |
GB8430592D0 (en) * | 1984-12-04 | 1985-01-09 | Peak Properties Ltd | Wrapping products |
DK200000171A (da) * | 2000-02-02 | 2001-08-03 | Jan K Moeller | Justerbart tragtformet rør |
DE50001238D1 (de) * | 2000-05-22 | 2003-03-20 | Sandern Maschb Gmbh K | Kalibrierhülse für ein extrudiertes Kunststoffrohr |
DE10324187B4 (de) * | 2003-05-28 | 2006-10-26 | Krauss-Maffei Kunststofftechnik Gmbh | Kombirolle für Rohrextrusionsanlage |
DE102004052972B4 (de) * | 2004-10-29 | 2010-10-28 | Battenfeld Extrusionstechnik Gmbh | Vorrichtung und Verfahren zum Führen und Formen eines extrudierten Kunststoffstranges |
DE102005028086B4 (de) * | 2005-06-17 | 2014-03-27 | Battenfeld-Cincinnati Austria Gmbh | Vorrichtung zum Stützen eines Kunststoffprofiles |
-
2007
- 2007-06-06 DE DE102007026309A patent/DE102007026309B3/de active Active
-
2008
- 2008-05-29 EP EP08758141.9A patent/EP2155467B1/fr active Active
- 2008-05-29 WO PCT/DE2008/000901 patent/WO2008148372A1/fr active Application Filing
Non-Patent Citations (1)
Title |
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None * |
Also Published As
Publication number | Publication date |
---|---|
EP2155467A1 (fr) | 2010-02-24 |
DE102007026309B3 (de) | 2008-11-13 |
WO2008148372A1 (fr) | 2008-12-11 |
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